EP3305574B1 - Method for operating an axis of a road vehicle train combination - Google Patents
Method for operating an axis of a road vehicle train combination Download PDFInfo
- Publication number
- EP3305574B1 EP3305574B1 EP17188970.2A EP17188970A EP3305574B1 EP 3305574 B1 EP3305574 B1 EP 3305574B1 EP 17188970 A EP17188970 A EP 17188970A EP 3305574 B1 EP3305574 B1 EP 3305574B1
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- European Patent Office
- Prior art keywords
- drive
- tractor
- drive module
- axle
- energy
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- 238000000034 method Methods 0.000 title claims description 31
- 238000004891 communication Methods 0.000 claims description 24
- 238000004146 energy storage Methods 0.000 claims description 13
- 238000012876 topography Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 description 8
- 239000010432 diamond Substances 0.000 description 8
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/11—Controlling the power contribution of each of the prime movers to meet required power demand using model predictive control [MPC] strategies, i.e. control methods based on models predicting performance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/12—Controlling the power contribution of each of the prime movers to meet required power demand using control strategies taking into account route information
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/0097—Predicting future conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D59/00—Trailers with driven ground wheels or the like
- B62D59/04—Trailers with driven ground wheels or the like driven from propulsion unit on trailer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/14—Tractor-trailers, i.e. combinations of a towing vehicle and one or more towed vehicles, e.g. caravans; Road trains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/20—Road profile, i.e. the change in elevation or curvature of a plurality of continuous road segments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2556/00—Input parameters relating to data
- B60W2556/45—External transmission of data to or from the vehicle
- B60W2556/50—External transmission of data to or from the vehicle of positioning data, e.g. GPS [Global Positioning System] data
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
Definitions
- the invention relates to a method for operating at least one axle of a road vehicle/train combination, the axle being arranged outside a tractor of the road vehicle/train combination on at least one vehicle towed by the tractor.
- tractor here stands for both a semitrailer tractor and a truck with a trailer hitch.
- towed vehicle is intended to include a trailer as a semi-trailer, a dolly or a trailer.
- a tractor with a trailer having an axle that can be driven by an electric motor. Furthermore, a cable is provided with which a connection can be made between the electric motor and a control unit of the tractor.
- the U.S. 2007/0193795 A1 describes a trailer with two driven wheels, including an energy storage device attached to the trailer.
- the trailer has a connection and control unit via which the trailer can receive input signals from sensors of the trailer and the towing vehicle.
- the object of the invention is to provide a method for operating at least one axle of a road vehicle-train combination, by means of which the driving dynamics properties of the road vehicle-train combination are effectively improved.
- a method for operating at least one axle of a road vehicle-train combination wherein the at least one axle is arranged outside a tractor of the road vehicle-train combination on at least one vehicle of the road vehicle-train combination that is towed by the towing vehicle or coupled to the towing vehicle.
- data on the current and possibly future driving operating state of the road vehicle-train combination is determined, in particular by means of the tractor unit and/or by means of the at least one towed vehicle.
- a temporary drive requirement is determined in addition to the drive by the tractor.
- a drive requirement can be determined here as a positive requirement, for example when starting or accelerating to support the traction engine drive, or as a negative requirement, for example when braking, possibly in connection with recuperation and an energy store.
- the data on driving conditions of the train combination can be recorded in the tractor or are there anyway for other functions and can possibly already be evaluated there and forwarded together with control signals to the towed vehicle, in particular to a drive module configured there.
- control signals to the towed vehicle in particular to a drive module configured there.
- data from driving operating states can be recorded and optionally evaluated.
- the required control elements can also be arranged in the tractor or in the towed vehicle or divided there.
- the at least one axle of the towed vehicle is designed as a drive module and at times a drive axle with a drive unit that can be activated in a controlled manner.
- the drive unit is then automatically activated and switched on according to the method, so that the axle is temporarily switched from running axle operation to driving axle operation.
- the drive forces are then distributed as required to several axles and thereby to at least one additional drive axle of a towed vehicle when an additional drive requirement is detected and relevant driving operating states, whereby the driving dynamics and longitudinal dynamic properties as well as the energy efficiency can be improved.
- An activated drive unit is supplied with drive energy from the towing vehicle, preferably by means of a pluggable supply line, and/or from an energy store in the drive module.
- An optimized charge equalization between an energy store, in particular an electric battery, of the tractor and an energy store, in particular an electric battery, of the drive module can also advantageously take place automatically in connection with an energy management dependent on driving operating states and possibly an upcoming topography.
- an energy management dependent on driving operating states and possibly an upcoming topography For example, a downhill slope following a hilltop should not be driven on with full batteries so that recuperation can take place and the components are not overcharged.
- an incline requires a charged battery/batteries of one or more power modules to assist the tractor with power boosting.
- GPS information regarding an upcoming topography is expediently taken into account in the energy management, as a result of which the overall system efficiency can be increased.
- At least one electric drive component in particular at least one electric motor, at least one battery as an energy store and/or electric control elements, can advantageously be used in the drive module.
- hydraulic and/or pneumatic and/or mechanical drive systems with corresponding control elements preferably with at least one energy store designed as a pressure store, can be used in a drive module, depending on the circumstances.
- wireless or wired communication and data exchange between the tractor and the drive module preferably via a standardized interface with a combination of pluggable communication and power supply line, the drive module to the tractor information about its status, in particular about the charge level of an associated energy store, transmit.
- the tractor should transmit control commands to the drive module by using its sensor system with regard to driving operating states and, if necessary, after determining a temporary drive requirement, which brake the drive axle from time to time, in particular in connection with recuperation when driving downhill, or drive the drive axle from time to time, in particular as a boost function trigger a rolling of the temporary drive axle in a passive mode as a running axle mode when starting off and/or driving uphill, or if there is no additional drive requirement.
- Switching pauses in the tractor drive can also be detected in the tractor, during which a drive module or a drive unit can be switched on in a controlled manner for acceleration that is largely free of traction force interruptions.
- a drive module or a drive unit can be switched on in a controlled manner for acceleration that is largely free of traction force interruptions.
- recuperation of the drive unit or a boost function can be switched on in a controlled manner.
- the internal combustion engine can optionally be operated at a more favorable operating point.
- the tractor unit In order to be able to use all possible functions when operating and using a drive module in a train combination, the tractor unit must be equipped with a drive module in terms of its sensors, data communication and energy supply. However, the operation and connection of a drive module should also be possible in a train combination with a non-compatible or only partially compatible tractor. It is therefore proposed that the drive module, without or with limited communication, be operated at least partially by evaluating its own sensor system for determining the driving speed and changes therein, as well as possibly the current or next topography and possibly by evaluating brake signals (e.g. via the ABS connector ) decides whether driving uphill or downhill or an acceleration process or a deceleration process or a combination of these is present.
- brake signals e.g. via the ABS connector
- a driver's desire to accelerate the train combination is, for example, about an increase in speed is detected with simultaneous analysis of the current gradient.
- the current topography can be evaluated via sensors and/or a subsequent topography by evaluating GPS information.
- the at least one drive module should also be controllable by hand in a shunting mode, in particular with a remote control, with regard to the drive unit and/or a steering of an axle.
- a dolly or a trailer can be maneuvered easily, especially in the closed area of a logistics center, even when the towing vehicle is uncoupled.
- a semi-trailer truck 1 is shown as an example consisting of a semi-trailer truck 2 and a trailer 3 as a semi-trailer, which is connected to the semi-trailer truck 2 by means of a fifth wheel plate-king pin connection 4 .
- the tractor 2 has two axles, of which the rear axle is designed as a permanent drive axle 5.
- the trailer 3 has three axles, of which the rear axle is designed as a drive module or as a drive axle 6 that can be switched on.
- Schematic is in 1 a connection 7 between the semitrailer tractor 2 and the drive axle 6 is drawn in, this connection 7 consisting of a wired or wireless communication line for data exchange and an energy supply line.
- the rear axle or the drive module 6 of the trailer 3 has a drive unit 30 by means of which the wheels of the rear axle 6 can be driven at times.
- the drive unit 30 is formed here, for example, by an electric motor that can be controlled by a control unit 31 of the drive module 6 .
- the electric motor 30 is automatically actuated by the control unit 31 as a function of the determined driving operating state of the semitrailer truck 1 and the determined drive requirement of the semitrailer truck 1 and switched on or activated at times, so that the wheels of the trailer rear axle 6 are driven by the electric motor 30 .
- the drive module 6 here also has an electrical energy storage unit 32 which is connected to the electric motor 30 in an energy-transmitting manner and by means of which the electric motor 30 can be supplied with electrical energy.
- the energy storage unit 32 can be charged, for example, by recuperation with electrical energy.
- the tractor unit 2 also has an energy storage unit 33, by means of which the electric motor 30 can also be supplied with electrical energy. The energy is transmitted between the tractor unit 2 and the trailer 3 by means of the line 7.
- FIG 3 a train combination of a three-axle truck 8 with a permanent drive axle 9, a dolly 10 attached to it with a switchable drive axle 11 and a trailer 12 coupled to the dolly 10.
- a connection 13 corresponding to the above connection 7 between the truck 8 as the tractor and the Dolly 10 or designed as a drive module drive axle 11 located.
- the structure of the drive module 11 can correspond to the structure of the 2 shown drive module 6 correspond.
- the trailer 3 is a towed vehicle with a drive axle that can be switched on 6.
- the truck 8 is the tractor and the dolly 10 is a towed vehicle with a drive axle 11 that can be engaged.
- FIG 3 is a flowchart for the operation and control of the drive unit of one or more drive modules as switchable drive axles 6, 11 and their energy storage shown. Before the illustrated flowchart was processed, it was already determined in the method whether a driving mode with a complete train combination or possibly a shunting mode in which a drive module can be controlled manually is present.
- the drive module decides automatically whether to activate its drive unit by evaluating its own sensor signals. According to rectangle 19, it is also checked whether an energy supply/coupling is established by the tractor unit, if not (left branch after decision diamond 20), an energy store of the drive module is filled exclusively by recuperation and emptied by driving the axles (rectangle 21).
- the energy store can be filled both by energy transfer from the tractor and/or by recuperation. Energy storage is also emptied here by an axle drive or possibly by a power transfer to the tractor (rectangle 22).
- the drive module is activated as required and from time to time to support starting processes and/or support on inclines and/or recuperation when braking/decelerating and/or recuperation on a downhill gradient (rectangle 28a).
- energy storage can also be filled by energy transfer from the tractor and/or by recuperation. Energy storage is emptied by driving one or more axles or by transferring power to the tractor (rectangle 27 corresponding to rectangle 22).
- the drive module is activated in diagram branch 17 to support starting processes and/or for support on inclines and/or for recuperation when braking/decelerating and/or recuperation on downhill gradients and/or for charge equalization with a tractor battery (rectangle 28b).
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Betrieb wenigstens einer Achse einer Straßenfahrzeug-Zugkombination, wobei die Achse außerhalb einer Zugmaschine der Straßenfahrzeug-Zugkombination an wenigstens einem mit der Zugmaschine gezogenen Fahrzeug angeordnet ist.The invention relates to a method for operating at least one axle of a road vehicle/train combination, the axle being arranged outside a tractor of the road vehicle/train combination on at least one vehicle towed by the tractor.
Der Begriff "Zugmaschine" steht hier sowohl für eine Sattelzugmaschine als auch für einen Lastkraftwagen mit einer Anhängekupplung. Der Begriff "gezogenes Fahrzeug" soll ein Trailer als Sattelauflieger, einen Dolly oder einen Anhänger umfassen.The term "tractor" here stands for both a semitrailer tractor and a truck with a trailer hitch. The term "towed vehicle" is intended to include a trailer as a semi-trailer, a dolly or a trailer.
Zugkombinationen aus den vorstehend genannten Zugmaschinen und gezogenen Fahrzeugen sind allgemein bekannt.Train combinations of the aforementioned tractors and towed vehicles are well known.
Bei solchen Zugkombinationen, insbesondere bei langen Zugkombinationen, zum Beispiel sogenannten Lang-LKWs, EuroCombis und Road-Train-Kombinationen können fahrbetriebsabhängig die fahrdynamischen und längsdynamischen Eigenschaften unbefriedigend sein, wobei insbesondere frühzeitig Traktionsgrenzen in Verbindung mit relativ hohem Reifenverschleiß erreicht werden können.With such train combinations, especially with long train combinations, for example so-called long trucks, EuroCombis and road-train combinations, the driving dynamics and longitudinal dynamics properties can be unsatisfactory depending on the driving operation, with traction limits in particular being reached early in connection with relatively high tire wear.
Aus der
Die
Aufgabe der Erfindung ist es, ein Verfahren zum Betrieb wenigstens einer Achse einer Straßenfahrzeug-Zugkombination bereitzustellen, mittels dem die fahrdynamischen Eigenschaften der Straßenfahrzeug-Zugkombination effektiv verbessert werden.The object of the invention is to provide a method for operating at least one axle of a road vehicle-train combination, by means of which the driving dynamics properties of the road vehicle-train combination are effectively improved.
Diese Aufgabe wird gelöst mit den Merkmalen der unabhängigen Patentansprüche. Bevorzugte Weiterbildungen sind in den Unteransprüchen offenbart.This object is solved with the features of the independent patent claims. Preferred developments are disclosed in the dependent claims.
Gemäß Patentanspruch 1 wird ein Verfahren zum Betrieb wenigstens einer Achse einer Straßenfahrzeug-Zugkombination vorgeschlagen, wobei die wenigstens eine Achse außerhalb einer Zugmaschine der Straßenfahrzeug-Zugkombination an wenigstens einem mit dem Zugfahrzeug gezogenen bzw. mit dem Zugfahrzeug gekoppelten Fahrzeug der Straßenfahrzeug-Zugkombination angeordnet ist.According to patent claim 1, a method for operating at least one axle of a road vehicle-train combination is proposed, wherein the at least one axle is arranged outside a tractor of the road vehicle-train combination on at least one vehicle of the road vehicle-train combination that is towed by the towing vehicle or coupled to the towing vehicle.
Erfindungsgemäß werden Daten zu dem aktuellen und gegebenenfalls zukünftigen Fahrbetriebszustand der Straßenfahrzeug-Zugkombination, insbesondere mittels der Zugmaschine und/oder mittels des wenigstens einen gezogenen Fahrzeugs, ermittelt.According to the invention, data on the current and possibly future driving operating state of the road vehicle-train combination is determined, in particular by means of the tractor unit and/or by means of the at least one towed vehicle.
Aus diesen Daten wird ein zeitweiser Antriebsbedarf zusätzlich zum Antrieb durch die Zugmaschine ermittelt. Ein solcher Antriebsbedarf kann hier als positiver Bedarf, zum Beispiel beim Anfahren oder Beschleunigen zur Unterstützung des Zugmaschinenantriebs oder als negativer Bedarf, zum Beispiel beim Bremsen, gegebenenfalls in Verbindung mit einer Rekuperation und einem Energiespeicher ermittelt werden.From this data, a temporary drive requirement is determined in addition to the drive by the tractor. Such a drive requirement can be determined here as a positive requirement, for example when starting or accelerating to support the traction engine drive, or as a negative requirement, for example when braking, possibly in connection with recuperation and an energy store.
Die Daten von Fahrbetriebszuständen der Zugkombination können in der Zugmaschine erfasst werden oder liegen dort ohnehin für andere Funktionen vor und können gegebenenfalls dort bereits ausgewertet und zusammen mit Steuersignalen an das gezogene Fahrzeug, insbesondere an ein dort ausgebildetes Antriebsmodul weitergeleitet werden. Alternativ oder zusätzlich können im gezogenen Fahrzeug, insbesondere in einem dortigen Antriebsmodul Daten von Fahrbetriebszuständen erfasst und gegebenenfalls ausgewertet werden. Entsprechend können auch erforderliche Steuerungselemente in der Zugmaschine oder im gezogenen Fahrzeug oder dort aufgeteilt angeordnet sein.The data on driving conditions of the train combination can be recorded in the tractor or are there anyway for other functions and can possibly already be evaluated there and forwarded together with control signals to the towed vehicle, in particular to a drive module configured there. Alternatively or additionally, in the towed vehicle, in particular in a local drive module, data from driving operating states can be recorded and optionally evaluated. Correspondingly, the required control elements can also be arranged in the tractor or in the towed vehicle or divided there.
Zur Realisierung des erfindungsgemäßen Verfahrens ist die wenigstens eine Achse des gezogenen Fahrzeugs als Antriebsmodul und zeitweise Triebachse mit einer gesteuert aktivierbaren Antriebseinheit ausgebildet. Bei einem ermittelten zeitweisen Antriebsbedarf wird dann verfahrensgemäß die Antriebseinheit automatisch aktiviert und zugeschaltet, so dass damit die Achse zeitweise von einem Laufachsenbetrieb in einen Triebachsenbetrieb geschaltet wird.To implement the method according to the invention, the at least one axle of the towed vehicle is designed as a drive module and at times a drive axle with a drive unit that can be activated in a controlled manner. When a drive requirement is determined at times, the drive unit is then automatically activated and switched on according to the method, so that the axle is temporarily switched from running axle operation to driving axle operation.
Vorteilhaft werden dann die Antriebskräfte bedarfsweise auf mehrere Achsen und dabei auf wenigstens eine zusätzliche Triebachse eines gezogenen Fahrzeugs bei einem erfassten zusätzlichen Antriebsbedarf und relevanten Fahrbetriebszuständen verteilt, wodurch die fahrdynamischen und längsdynamischen Eigenschaften ebenso wie die Energieeffizienz verbessert werden können.Advantageously, the drive forces are then distributed as required to several axles and thereby to at least one additional drive axle of a towed vehicle when an additional drive requirement is detected and relevant driving operating states, whereby the driving dynamics and longitudinal dynamic properties as well as the energy efficiency can be improved.
Eine aktivierte Antriebseinheit wird mit Antriebsenergie aus der Zugmaschine, vorzugsweise mittels einer steckbaren Versorgungsleitung, und/oder aus einem Energiespeicher des Antriebsmoduls versorgt.An activated drive unit is supplied with drive energy from the towing vehicle, preferably by means of a pluggable supply line, and/or from an energy store in the drive module.
Vorteilhaft kann dabei zudem ein optimierter Ladungsausgleich zwischen einem Energiespeicher, insbesondere einer elektrischen Batterie, der Zugmaschine und einem Energiespeicher, insbesondere einer elektrischen Batterie, des Antriebsmoduls automatisch in Verbindung mit einem von Fahrbetriebszuständen und gegebenenfalls einer vorausliegenden Topographie abhängigen Energiemanagement erfolgen. Beispielsweise sollte im Fahrverlauf ein, einer Kuppe folgendes Gefälle nicht mit vollen Batterien befahren werden, damit eine Rekuperation stattfinden kann und es nicht zur Überladung der Komponenten kommt. Umgekehrt benötigt eine Steigung eine geladene Batterie/Batterien eines oder mehrerer Antriebsmodule, um die Zugmaschine mit Antriebsleistung durch Boosten zu unterstützen. Zweckmäßig werden hier GPS-Informationen bezüglich einer vorausliegenden Topographie im Energiemanagement berücksichtigt, wodurch die Gesamtsystemeffizienz erhöht werden kann.An optimized charge equalization between an energy store, in particular an electric battery, of the tractor and an energy store, in particular an electric battery, of the drive module can also advantageously take place automatically in connection with an energy management dependent on driving operating states and possibly an upcoming topography. For example, a downhill slope following a hilltop should not be driven on with full batteries so that recuperation can take place and the components are not overcharged. Conversely, an incline requires a charged battery/batteries of one or more power modules to assist the tractor with power boosting. Here, GPS information regarding an upcoming topography is expediently taken into account in the energy management, as a result of which the overall system efficiency can be increased.
Die Verwendung eines zuschaltbaren Verbrennungsmotors in einem Antriebsmodul ist zwar grundsätzlich möglich, jedoch nur schwierig realisierbar, so dass vorzugsweise andere alternative Antriebskonzepte verwendet werden sollen:
Vorteilhaft kann im Antriebsmodul wenigstens eine elektrische Antriebskomponente, insbesondere wenigstens ein Elektromotor, wenigstens eine Batterie als Energiespeicher und/oder elektrische Steuerelemente, verwendet werden. Zusätzlich oder alternativ können hydraulische und/oder pneumatische und/oder mechanische Antriebssysteme mit entsprechenden Steuerelementen, vorzugsweise mit wenigstens einem als Druckspeicher ausgebildeten Energiespeicher, je nach den Gegebenheiten in einem Antriebsmodul eingesetzt werden.Although the use of a switchable internal combustion engine in a drive module is possible in principle, it is difficult to implement, so that other alternative drive concepts should preferably be used:
At least one electric drive component, in particular at least one electric motor, at least one battery as an energy store and/or electric control elements, can advantageously be used in the drive module. In addition or as an alternative, hydraulic and/or pneumatic and/or mechanical drive systems with corresponding control elements, preferably with at least one energy store designed as a pressure store, can be used in a drive module, depending on the circumstances.
In einer vorteilhaften Konkretisierung des Verfahrens soll durch eine drahtlose oder kabelgebundene Kommunikation und einen Datenaustausch zwischen Zugmaschine und Antriebsmodul, vorzugsweise über eine standardisierte Schnittstelle mit einer Kombination aus steckbarer Kommunikations- und Energieversorgungsleitung, das Antriebsmodul an die Zugmaschine Informationen über seinen Status, insbesondere über den Ladezustand eines zugeordneten Energiespeichers, übermitteln. Im Gegenzug soll die Zugmaschine durch Nutzung seiner Sensorik bezüglich Fahrbetriebszuständen und gegebenenfalls nach Ermittlung eines zeitweisen Antriebsbedarfs Steuerbefehle an das Antriebsmodul übermitteln, die eine Bremsung der zeitweisen Triebachse, insbesondere in Verbindung mit einer Rekuperation bei einer Bergabfahrt oder einen Antrieb der zeitweisen Triebachse, insbesondere als Boostfunktion bei einem Anfahrvorgang und/oder einer Bergauffahrt, oder bei fehlenden zusätzlichen Antriebsbedarf ein Rollen der zeitweisen Triebachse in einem Passivmodus als Laufachsenmodus auslösen.In an advantageous embodiment of the method, wireless or wired communication and data exchange between the tractor and the drive module preferably via a standardized interface with a combination of pluggable communication and power supply line, the drive module to the tractor information about its status, in particular about the charge level of an associated energy store, transmit. In return, the tractor should transmit control commands to the drive module by using its sensor system with regard to driving operating states and, if necessary, after determining a temporary drive requirement, which brake the drive axle from time to time, in particular in connection with recuperation when driving downhill, or drive the drive axle from time to time, in particular as a boost function trigger a rolling of the temporary drive axle in a passive mode as a running axle mode when starting off and/or driving uphill, or if there is no additional drive requirement.
Weiter können in der Zugmaschine Schaltpausen des Zugmaschinenantriebs erfasst werden, in denen für eine weitgehende zugkraftunterbrechungsfreie Beschleunigung ein Antriebsmodul bzw. eine Antriebseinheit gesteuert zugeschaltet werden kann. Ebenso kann in ungünstigen Betriebspunkten einer Brennkraftmaschine der Zugmaschine gesteuert eine Rekuperation der Antriebseinheit oder eine Boostfunktion zugeschaltet werden. Auf diese Weise kann der Verbrennungsmotor gegebenenfalls in einem günstigeren Betriebspunkt betrieben werden.Switching pauses in the tractor drive can also be detected in the tractor, during which a drive module or a drive unit can be switched on in a controlled manner for acceleration that is largely free of traction force interruptions. Likewise, at unfavorable operating points of an internal combustion engine of the towing vehicle, recuperation of the drive unit or a boost function can be switched on in a controlled manner. In this way, the internal combustion engine can optionally be operated at a more favorable operating point.
Um alle möglichen Funktionen beim Betrieb und Einsatz eines Antriebsmoduls in einer Zugkombinationen ausnutzen zu können, muss die Zugmaschine hinsichtlich ihrer Sensorik, Datenkommunikation und Energieversorgung kompatibel zu einem Antriebsmodul ausgestattet sein. Der Betrieb und die Zuschaltung eines Antriebsmoduls sollen jedoch auch bei einer Zugkombination mit einer nicht kompatiblen oder nur eingeschränkt kompatiblen Zugmaschine möglich sein. Es wird daher vorgeschlagen, dass ohne oder mit eingeschränkter Kommunikation das Antriebsmodul zumindest teilweise selbst unter Auswertung einer eigenen Sensorik zur Ermittlung der Fahrgeschwindigkeit und deren Änderung, sowie gegebenenfalls der aktuellen oder nächstfolgenden Topographie und gegebenenfalls durch Auswertung von Bremssignalen (zum Beispiel über den ABS-Stecker) entscheidet, ob eine Bergauffahrt oder Bergabfahrt oder ein Beschleunigungsvorgang oder ein Verzögerungsvorgang bzw. Kombinationen daraus vorliegen. Durch eine Auswertung dieser Zustände wird dann im Antriebsmodul selbst festgestellt, ob ein zusätzlicher Antriebsbedarf vorliegt und eine zugeordnete Antriebseinheit insbesondere für eine Boost- oder Rekuperationsfunktion angesteuert wird. Ein Beschleunigungswunsch eines Fahrers der Zugkombination wird beispielsweise über eine Zunahme der Geschwindigkeit bei gleichzeitiger Analyse der aktuellen Steigung detektiert. Dabei kann die aktuelle Topographie über Sensoren und/oder eine nächstfolgende Topographie durch Auswertung von GPS-Informationen ausgewertet werden.In order to be able to use all possible functions when operating and using a drive module in a train combination, the tractor unit must be equipped with a drive module in terms of its sensors, data communication and energy supply. However, the operation and connection of a drive module should also be possible in a train combination with a non-compatible or only partially compatible tractor. It is therefore proposed that the drive module, without or with limited communication, be operated at least partially by evaluating its own sensor system for determining the driving speed and changes therein, as well as possibly the current or next topography and possibly by evaluating brake signals (e.g. via the ABS connector ) decides whether driving uphill or downhill or an acceleration process or a deceleration process or a combination of these is present. By evaluating these states, it is then determined in the drive module itself whether there is an additional drive requirement and whether an assigned drive unit is activated, in particular for a boost or recuperation function. A driver's desire to accelerate the train combination is, for example, about an increase in speed is detected with simultaneous analysis of the current gradient. The current topography can be evaluated via sensors and/or a subsequent topography by evaluating GPS information.
Ob und gegebenenfalls welche Kommunikationsmöglichkeiten mit der Zugmaschine vorliegen wird erfindungsgemäß automatisch festgestellt. Das Antriebsmodul wird in Abhängigkeit von festgestellten Kommunikationsmöglichkeiten erfindungsgemäß dergestalt aktiviert:
- Bei festgestellter fehlender Kommunikationsmöglichkeit mit der Zugmaschine wertet das Antriebsmodul selbstständig eine eigene Sensorik aus und trifft daraus selbstständig die Entscheidung zur Zuschaltung der Antriebseinheit.
- Bei festgestellter Kommunikation zwischen Zugmaschine und Antriebsmodul werden die Vorgaben von der Zugmaschine zur Zuschaltung der Antriebseinheit genutzt.
- In beiden vorstehenden Fällen wird geprüft und festgestellt, ob die Zugmaschine zur Energieversorgung mit dem Antriebsmodul gekoppelt ist. Falls nicht, wird ein erforderlicher Energiespeicher des Antriebsmoduls nur durch Rekuperation beim Bremsen und bei einer Bergabfahrt gefüllt bzw. durch einen Achsantrieb geleert. Bei einer Verbindung mit der Zugmaschine zur Energieversorgung wird diese direkt genutzt und/oder ein Energiespeicher wird zusätzlich durch einen Energietransfer zwischen Zugmaschine und Antriebsmodul gefüllt oder geleert. Zudem ist dabei auch ein Energiemanagement durch einen Ladungsausgleich zwischen einem Antriebsmodul-Energiespeicher und einem Zugmaschinen-Energiespeicher möglich.
- In jedem der vorstehenden Fälle mit unterschiedlichen Verfahrensbedingungen erfolgt aber immer eine zeitweise Aktivierung der Antriebseinheit bei einem festgestellten zusätzlichen Antriebsbedarf zur Antriebsunterstützung bei Anfahrvorgängen und/oder an Steigungen, sowie zum Rekuperieren beim Bremsen bzw. beim Verzögern und im Gefälle .
- If it is determined that there is no possibility of communication with the tractor, the drive module independently evaluates its own sensors and makes the decision to switch on the drive unit independently.
- When communication is established between the tractor and the drive module, the specifications are used by the tractor to switch on the drive unit.
- In both of the above cases, it is checked and determined whether the tractor is coupled to the drive module for power supply. If not, a required energy store of the drive module is only filled by recuperation when braking and when driving downhill, or emptied by an axle drive. In the case of a connection to the traction engine for the energy supply, this is used directly and/or an energy store is additionally filled or emptied by an energy transfer between the traction engine and the drive module. In addition, energy management is also possible by charge equalization between a drive module energy store and a traction engine energy store.
- In each of the above cases with different process conditions, however, the drive unit is always activated from time to time when an additional drive requirement is determined for drive support when starting and/or on inclines, as well as for recuperation when braking or decelerating and on downhill gradients.
In einer besonders vorteilhaften Weiterbildung des Verfahrens soll das wenigstens eine Antriebsmodul in einem Rangiermodus auch von Hand, insbesondere mit einer Fernsteuerung, hinsichtlich der Antriebseinheit und/oder einer Lenkung einer Achse steuerbar sein. Damit kann beispielsweise auch bei abgekoppelter Zugmaschine ein Dolly oder ein Trailer einfach, insbesondere in einem abgeschlossenen Gelände eines Logistikzentrums, rangiert werden.In a particularly advantageous development of the method, the at least one drive module should also be controllable by hand in a shunting mode, in particular with a remote control, with regard to the drive unit and/or a steering of an axle. In this way, for example, a dolly or a trailer can be maneuvered easily, especially in the closed area of a logistics center, even when the towing vehicle is uncoupled.
Zudem wird eine Straßenfahrzeug-Zugkombination beansprucht, mit der das erfindungsgemäße Verfahren durchgeführt werden kann. Die sich hieraus ergebenden Vorteile sind identisch mit den bereits gewürdigten Vorteilen des erfindungsgemäßen Verfahrens, so dass diese an dieser Stelle nicht wiederholt werden.In addition, a road vehicle-train combination is claimed, with which the method according to the invention can be carried out. The resulting advantages are identical to the advantages of the method according to the invention that have already been acknowledged, so that they will not be repeated here.
Die Erfindung und ihre vorteilhaften Aus- und/oder Weiterbildungen sowie deren Vorteile werden nachfolgend anhand von Zeichnungen lediglich beispielhaft näher erläutert.The invention and its advantageous developments and/or developments as well as the advantages thereof are explained in more detail below with reference to drawings, by way of example only.
Es zeigen:
- Figur 1
- eine Straßenfahrzeug-Zugkombination als Sattelzugkombination,
Figur 2- eine schematische Darstellung, aus der der Aufbau eines Antriebsmoduls der Sattelzugkombination hervorgeht;
Figur 3- eine Zugkombinationen aus einem Lastkraftwagen, einem Dolly und einem Sattelauflieger, und
Figur 4- ein Ablaufdiagramm zu einem Betriebsverfahren für ein Antriebsmodul.
- figure 1
- a road vehicle-train combination as a semitrailer combination,
- figure 2
- a schematic representation showing the structure of a drive module of the tractor-trailer combination;
- figure 3
- a train combination of a truck, a dolly and a semi-trailer, and
- figure 4
- a flowchart for an operating method for a drive module.
In
Der Trailer 3 weist drei Achsen auf, von denen die hintere Achse als Antriebsmodul bzw. als zuschaltbare Triebachse 6 ausgeführt ist. Schematisch ist in
Wie in
Gemäß
Als weiteres Ausführungsbeispiel ist in
In
Im Falle der
Entsprechend entscheidet im linken Zweig 16 gemäß Rechteck 18 das Antriebsmodul selbsttätig über eine Aktivierung seiner Antriebseinheit unter Auswertung eigener Sensorsignale. Gemäß Rechteck 19 wird zudem geprüft, ob eine Energieversorgung/-kopplung durch die Zugmaschine hergestellt ist, wenn nicht (linker Zweig nach der Entscheidungsraute 20) wird ein Energiespeicher des Antriebsmoduls ausschließlich durch Rekuperieren gefüllt und durch einen Antrieb der Achsen geleert (Rechteck 21).Correspondingly, in the
Falls eine Energieversorgung/-kopplung durch die Zugmaschine hergestellt ist (rechter Zweig nach der Entscheidungsraute 20) kann der Energiespeicher sowohl durch Energietransfer von der Zugmaschine und/oder durch Rekuperation gefüllt werden. Eine Energiespeicherleerung erfolgt auch hier durch einen Achsantrieb oder gegebenenfalls durch einen Leistungstransfer zur Zugmaschine (Rechteck 22).If an energy supply/coupling is established by the tractor (right-hand branch after decision diamond 20), the energy store can be filled both by energy transfer from the tractor and/or by recuperation. Energy storage is also emptied here by an axle drive or possibly by a power transfer to the tractor (rectangle 22).
In jedem Fall erfolgt eine bedarfsweise und zeitweise Aktivierung des Antriebsmoduls zur Unterstützung von Anfahrvorgängen und/oder Unterstützung an Steigungen und/oder Rekuperieren beim Bremsen/bei Verzögerungen und/oder Rekuperieren im Gefälle (Rechteck 28a).In any case, the drive module is activated as required and from time to time to support starting processes and/or support on inclines and/or recuperation when braking/decelerating and/or recuperation on a downhill gradient (
Gegenüber dem linken Zweig 16 sind bei festgestellter Kommunikation mit der Zugmaschine vergleichsweise weitere Funktionen entsprechend dem rechten Zweig 17 des Ablaufdiagramms möglich: Durch die Antriebskommunikation mit der Zugmaschine können Vorgaben der Zugmaschine und ein Energiefluss berücksichtigt werden (Rechteck 23).Compared to the left-
Auch hier wird geprüft, ob zusätzlich zur Datenkommunikation eine Energieversorgung/-koppelung durch die Zugmaschine erfolgt (Rechteck 24).Here, too, it is checked whether, in addition to the data communication, there is an energy supply/coupling by the tractor (rectangle 24).
Falls dies nicht erfolgt (linker Zweig nach Entscheidungsraute 25) ist auch hier eine Energiespeicherfüllung nur durch Rekuperieren beim Bremsen und gegebenenfalls bei Bergabfahrten möglich. Eine Speicherentleerung erfolgt durch Antrieb einer oder mehreren Achsen (Rechteck 26 entsprechend dem Rechteck 21).If this does not happen (left-hand branch after decision diamond 25), energy storage can only be filled by recuperation when braking and possibly when driving downhill. Storage is emptied by driving one or more axes (
Falls eine Energieversorgung/-kopplung durch die Zugmaschine gegeben ist (rechter Zweig nach Entscheidungsraute 25) ist auch hier eine Energiespeicherfüllung durch Energietransfer von der Zugmaschine und/oder durch Rekuperation möglich. Eine Energiespeicherleerung erfolgt durch Antrieb einer oder mehrerer Achsen oder durch einen Leistungstransfer zur Zugmaschine (Rechteck 27 entsprechend Rechteck 22).If there is an energy supply/coupling by the tractor (right branch after decision diamond 25), energy storage can also be filled by energy transfer from the tractor and/or by recuperation. Energy storage is emptied by driving one or more axles or by transferring power to the tractor (
Eine Aktivierung des Antriebsmoduls erfolgt im Diagrammzweig 17 zur Unterstützung von Anfahrvorgängen und/oder zur Unterstützung an Steigungen und/oder zum Rekuperieren beim Bremsen/Verzögern und/oder Rekuperieren im Gefälle und/oder zum Ladungsausgleich mit einer Zugmaschinenbatterie (Rechteck 28b).The drive module is activated in
- 11
- Sattelzugarticulated lorry
- 22
- Sattelzugmaschinetractor unit
- 33
- Trailertrailers
- 44
- Sattelplatte-Königszapfen-VerbindungFifth wheel plate king pin connection
- 55
- Triebachse (permanent)Drive axle (permanent)
- 66
- Triebachse (zuschaltbar)Drive axle (switchable)
- 77
- Verbindungconnection
- 88th
- Lastkraftwagentruck
- 99
- Triebachse (permanent)Drive axle (permanent)
- 1010
- Dollydolly
- 1111
- Triebachse (zuschaltbar)Drive axle (switchable)
- 1212
- Trailertrailers
- 1313
- Verbindungconnection
- 1414
- Status-Rechteckstatus rectangle
- 1515
- Entscheidungsrautedecision diamond
- 1616
- linker Zweigleft branch
- 1717
- rechter Zweigright branch
- 1818
- Rechteckrectangle
- 1919
- Rechteckrectangle
- 2020
- Entscheidungsrautedecision diamond
- 2121
- Rechteckrectangle
- 2222
- Rechteckrectangle
- 2424
- Rechteckrectangle
- 2525
- Entscheidungsrautedecision diamond
- 2626
- Rechteckrectangle
- 2727
- Rechteckrectangle
- 28a, 28b28a, 28b
- Rechteckerectangles
- 3030
- Antriebseinheitdrive unit
- 3131
- Steuereinheitcontrol unit
- 3232
- Energiespeichereinheitenergy storage unit
- 3333
- Energiespeichereinheitenergy storage unit
Claims (9)
- Method for operating at least one axle of a road-vehicle tractor-trailer combination, wherein the axle (6; 11) is arranged outside of a tractor (2; 8) of the road-vehicle tractor-trailer combination (1) on at least one vehicle (3; 10) pulled by the tractor (2; 8),wherein data relating to the current driving operation state of the road-vehicle tractor-trailer combination (1) are ascertained,wherein a temporary drive demand in addition to the drive (5:9) of the tractor (2; 8) is ascertained from said data,wherein the axle (6; 11) of the pulled vehicle (3; 10) is designed as a drive module and temporary driving axle with a drive unit (30) that can be activated in a controlled manner,wherein the drive unit (30) is automatically activated and connected in the case of an ascertained temporary drive demand so that the axle (6; 11) is switched thereby from an idler axle operation to a temporary driving axle operation, characterized in thatthe drive module is activated depending on automatically determined communication options with the tractor (2, 8) in such a way that- when a lack of communication option with the tractor (2; 8) is determined, the drive module independently evaluates a separate sensor system and independently from this makes the decision to connect the drive unit (30),- in contrast, when communication between the tractor (2; 8) and the drive module is determined to be present, specifications from the tractor (2; 8) are used to connect the drive unit (30),- in both above cases, it is checked and determined whether the tractor (2; 8) is coupled to the drive module for the purpose of energy supply, if not a required energy store of the drive module is filled only by recuperation during braking and/or downhill travel and emptied by an axle drive, otherwise if there is a connection to the tractor (2; 8) for the purpose of energy supply, this is used directly and/or an energy store is additionally filled or emptied by an energy transfer between the tractor (2; 8) and the drive module, and- in any case, the drive unit (30) is activated temporarily to support the drive during starting procedures and/or on inclines and to recuperate during braking and/or descents.
- Method according to Claim 1, characterized in that the drive unit (30) is supplied with drive energy from the tractor (2; 8), preferably by means of a pluggable supply line, and/or from an energy storage unit (32) of the drive module.
- Method according to Claim 2, characterized in that there is an optimized charge equalization between an energy store (33), in particular an electric battery, of the tractor (2; 8) and an energy store (32), in particular an electric battery, of the drive module that takes place automatically in conjunction with an energy management that is dependent on driving operating states, where appropriate in coordination with an upcoming topography.
- Method according to one of Claims 1 to 3, characterized in thatthe drive module has at least one electric drive component, in particular at least one electric motor (30), at least one battery (32) and/or electrical control elements, and/orthe drive module has a hydraulic and/or pneumatic and/or mechanical drive system with corresponding control elements, preferably with at least one energy store that is designed as a pressure reservoir.
- Method according to one of Claims 1 to 4, characterized in thatthe drive module transmits information about its status, in particular about the state of charge of an associated energy store, to the tractor (2; 8) by way of a wireless or wired communication and a data exchange between the tractor (2; 8) and the drive module, preferably via a standardized interface with a combination of a pluggable communication and energy supply line (7; 13), andthe tractor (2; 8) uses its sensor system with respect to driving operating states and possibly after ascertaining a temporary drive demand to transmit control commands to the drive module, the control commands triggering braking of the temporary driving axle (6; 11), in particular in connection with recuperation during downhill travel or braking, or triggering a drive of the temporary driving axle (6; 11), in particular as a boost function during a starting process and/or during uphill travel, or rolling of the temporary driving axle (6; 11) in a passive mode as idler axle mode when there is no additional drive demand.
- Method according to Claim 5, characterized in thatswitching pauses of the tractor drive are detected and, in the switching pauses, the drive unit (30) is connected in a controlled manner for an acceleration that is substantially free of traction interruption, and/ora recuperation of the drive unit (30) is connected in a controlled manner at unfavourable operating points of an internal combustion engine of the tractor (2; 8).
- Method according to one of Claims 1 to 4, characterized in that, without communication with respect to driving operating states and an additional drive demand between the drive module and the tractor (2; 8), the drive module itself evaluates a separate sensor system for ascertaining the driving speed and the change thereof, and possibly the current or next topography and possibly evaluates brake signals (ABS plug) to decide whether an uphill travel or a downhill travel or an acceleration process or a deceleration process or a combination thereof is present and whether an additional drive demand with associated actuation of the drive unit (30), in particular for a boost or recuperation function, is present.
- Method according to one of Claims 1 to 7, characterized in that at least one drive module can be controlled in a manoeuvring mode by hand, in particular with remote control, with respect to the drive unit (30) and/or an axle steering system.
- Road-vehicle tractor-trailer combination, with a tractor (2; 8) and at least one vehicle (3; 10) pulled by the tractor (2; 8), for carrying out a method according to one of the preceding claims,wherein data relating to the current driving operating state of the road-vehicle tractor-trailer combination (1) can be ascertained,wherein a temporary drive demand in addition to the drive (5:9) of the tractor (2; 8) can be ascertained from said data,wherein at least one axle (6; 11) of the pulled vehicle (3; 10) is designed as a drive module and temporary driving axle with a drive unit (30) that can be activated in a controlled manner,wherein the drive unit (30) can be automatically activated and connected in the case of an ascertained temporary drive demand so that the axle (6; 11) is switched thereby from an idler axle operation to a temporary driving axle operation,wherein the drive unit (30) can be supplied with drive energy from the tractor (2; 8) and from an energy storage unit (32) of the drive module,characterized in thatthe drive module is activated depending on automatically determined communication options with the tractor (2, 8) in such a way that- when a lack of communication option with the tractor (2; 8) is determined, the drive module independently evaluates a separate sensor system and independently from this makes the decision to connect the drive unit (30),- in contrast, when communication between the tractor (2; 8) and the drive module is determined to be present, specifications from the tractor (2; 8) are used to connect the drive unit (30),- in both above cases, it is checked and determined whether the tractor (2; 8) is coupled to the drive module for the purpose of energy supply, if not a required energy store of the drive module is filled only by recuperation during braking and/or downhill travel and emptied by an axle drive, otherwise if there is a connection to the tractor (2; 8) for the purpose of energy supply, this is used directly and/or an energy store is additionally filled or emptied by an energy transfer between the tractor (2; 8) and the drive module, and- in any case, the drive unit (30) is activated temporarily to support the drive during starting procedures and/or on inclines and to recuperate during braking and/or descents.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016010573.9A DE102016010573A1 (en) | 2016-09-02 | 2016-09-02 | Method for operating an axle of a road vehicle-train combination |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3305574A1 EP3305574A1 (en) | 2018-04-11 |
EP3305574B1 true EP3305574B1 (en) | 2022-11-02 |
Family
ID=59829182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17188970.2A Active EP3305574B1 (en) | 2016-09-02 | 2017-09-01 | Method for operating an axis of a road vehicle train combination |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3305574B1 (en) |
DE (1) | DE102016010573A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018111683A1 (en) * | 2018-05-15 | 2019-11-21 | Wabco Gmbh | Device for a vehicle trailer and system therewith and method therefor |
DE102018220164A1 (en) * | 2018-11-23 | 2020-05-28 | Zf Friedrichshafen Ag | Method for operating a coupled vehicle convoy |
DE102019202782B4 (en) * | 2019-03-01 | 2022-02-24 | Zf Friedrichshafen Ag | Process for energy management of a team |
DE102019219283A1 (en) * | 2019-12-11 | 2021-06-17 | Zf Friedrichshafen Ag | Representation of operating data for a trailer |
DE102020108733A1 (en) | 2020-03-30 | 2021-09-30 | Man Truck & Bus Se | Method and device for drive control of a tractor-trailer combination |
DE102020210861A1 (en) | 2020-08-27 | 2022-03-03 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Vehicle train with decentralized energy storage and energy management |
DE102021131587A1 (en) | 2021-12-01 | 2023-06-01 | Bayerische Motoren Werke Aktiengesellschaft | Trailer, tractor and trailer with IT and/or electro-energetic coupling |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3143723A1 (en) | 1981-11-04 | 1983-05-11 | Willy Scheuerle Fahrzeugfabrik GmbH & Co, 7114 Pfedelbach | "HEAVY LOAD VEHICLE COMBINATION OR VEHICLE ASSOCIATION" |
DE3739919A1 (en) | 1987-11-25 | 1989-06-08 | Schoell Guenter | Method and device for optional exclusive or additional electrical drive of vehicles with internal combustion engines |
DE68902235T2 (en) | 1988-04-12 | 1993-03-18 | Willy Joseph Noerens | METHOD AND DEVICE FOR REGULATING THE MOTOR TORQUE THAT IS TRANSFERRED FROM A TRACTOR TO A SEMI-TRAILER WITH A LIQUID DRIVE. |
DE4133912A1 (en) | 1991-10-09 | 1993-04-15 | Mannesmann Ag | VEHICLE WITH DRIVE WHEELS DRIVED BY ELECTRIC MOTORS |
EP0947376A1 (en) | 1998-04-03 | 1999-10-06 | Institute for Home Economics of Japan, Inc. | Composite electric vehicle system with removable power source |
US6419037B1 (en) | 2000-07-19 | 2002-07-16 | Meritor Heavy Vehicle Systems, Llc | Multi-unit articulated road train propulsion system |
CA2418686A1 (en) * | 2003-02-07 | 2004-08-07 | Gaetan Leclerc | Motorized semi-trailer |
US7743859B2 (en) * | 2006-02-03 | 2010-06-29 | Magna Powertrain Usa, Inc. | Hybrid drivetrains for trailers |
EP1886905B1 (en) * | 2006-08-07 | 2010-03-17 | Truma Gerätetechnik GmbH & Co. KG | Manoeuvring device for trailer with its own auxiliary drive |
DE102008001565A1 (en) * | 2008-05-06 | 2009-11-12 | Zf Friedrichshafen Ag | Trailer has axle and wheel for receiving semi trailer, which has electrical machine with energy storage that is integrated in trailer as drive unit, where electrical machine is operated as generator |
DE102012107648B4 (en) | 2012-08-21 | 2016-09-15 | Avl Trimerics Gmbh | Drive device for towed vehicles |
DE102014210539A1 (en) * | 2014-06-04 | 2015-12-17 | Robert Bosch Gmbh | Method for forecasting a drive load |
DE102014007979B4 (en) | 2014-06-04 | 2016-07-21 | Scheuerle Fahrzeugfabrik Gmbh | Vehicle composite with several powered vehicle modules |
-
2016
- 2016-09-02 DE DE102016010573.9A patent/DE102016010573A1/en not_active Withdrawn
-
2017
- 2017-09-01 EP EP17188970.2A patent/EP3305574B1/en active Active
Also Published As
Publication number | Publication date |
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EP3305574A1 (en) | 2018-04-11 |
DE102016010573A1 (en) | 2018-03-08 |
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